Many Federal agencies actively address the problem of violence in schools by acquiring and disseminating information about school violence and supporting strategies that work to reduce violence. By describing these activities and projects, the inventory will also help those interested to better understand Federal activities addressing violence in schools. This inventory identified all ongoing activities, as well as recently completed efforts that either: (1) directly address the problem of violence that occurs on school property, on the way to or from school, or at school-related events; or (2) indirectly address school violence by focusing on precursors of violence, factors associated with violence, or mechanisms for preventing violent behavior. The inventory provides information on the lead or funding agency, collaborating Federal agencies, and contact information for Federal agency staff associated with each project. Many of the listed projects are collaborative efforts with non-Federal partners. These partners are listed in the project description.